Hanaʻia nā bolloy 20 mau Bolts mai NIchrome me 32.5%,ʻo ka calani, heʻiliʻili,ʻo kaʻiliʻili,ʻo kaʻiliʻili,ʻo kaʻiliʻili,ʻo Marbilase, heʻiliʻili,ʻo kaʻiliʻili,ʻo Markelase, ma Coumban, Copika, Pākeke, Collenese, Columbium, Columbuit, Marbit ʻO Alloy 20 he inoaʻo Nickel-Chromium-Molybdelus nui i kūkuluʻia i nā noi kiloki Ua loaʻa hou i kāna mau corrosionion e hoʻohana i nā mea hoʻohana'ē aʻe i loko o ka kemika, meaʻai, meaʻai, nāʻoihana lāʻau lapaʻau. Ua pale akuʻo Alloy 20 i ka piko a me ka cropside corrosiot, a pale aku kona mau keleawe keleawe iā ia mai ka moana sulfuric acid. ʻAʻoleʻo Alloy 20ʻaʻole SS, akā he Nickel Alloy (Astm).